# Show that $p \rightarrow q$ and $q \rightarrow p$ are not equivalent.

Toolbox:
• Conditional statement :"If $p$ then $q$" is written as $p\rightarrow q$ (p implies q).$p\rightarrow q$ is false only if $p$ is true and $q$ is false.If $p$ is false,then $p\rightarrow q$ is true ,regardless of the truth value of $q$
From the last two columns of the truth table,it is evident that $p\rightarrow q$ and $q\rightarrow p$ are not equivalent.